Okay. Continuing on with the series. Now that we have mapped the network, we need to enumerate users on the active hosts. Often times you will be preforming a Penetration Test on a windows machine. In the event that the machine has RestrictAnonymous set, you may find it difficult to enumerate users using your null session. It is important to note that this does not make it impossible! tools like enum rely upon the null session enumeration option, therefore RestrictAnonymous = 2 ruins the use of that tool (and others like it). I am going to show you a method to brute force usernames in a different manner. For this you will need two tools, sid2user, and user2sid. You can get them here.